VANCOUVER - A seafood company that prides itself on buying nothing but sustainable and legal fish says it has become a bycatch in an investigation into an alleged illegal First Nation salmon fishery. Provincial court documents say the federal government is investigating the illegal catch of about 64,000 kilograms of prime sockeye salmon in the Johnstone Strait last August. It's part of a wider investigation that a spokeswoman from the Department of Fisheries wouldn't elaborate on beyond saying no charges have yet been laid.